adler



Dec. 25, 1923.

J. A. ADLER X-RAY FILM HOLDER AND *EXAMINING FRAME 10, 1923 2 Sheets-Sheet Filed Feb.

Dec. 25, m3. 31,478,504

v J. A. QADLER X RAY FI LM HOLDER AND EXANLI N I NG FRAME Filed Feb. 10 1923 2 Sheets-Sheet 2 Patented Dec. 25, was, t Lgg g mg UNETED STATE PATENT CDFFHED JOHN a manna, OF NORTH MILWAUKEE, WISCONSIN.

X-BA Y-FILM HOLDER AND 'EXAMI'NING- FRAME/ Application filed February 10, 1923. .Serial No. 618,295.

To all whom it may concern: sheet steel and the lower edge of the casing Be it known that 1, JOHN A. ADLER, a citiis secured to a cast, frame 3 angularin r ss zen of the United States, residing at North section, which is preferably made of brass Milwaukee in the county of Milwaukee and or steel, This frame 3 is formed with an State of Wisconsin, have invented certain upwardly extending flange 12 recessed at 13 new and useful Improvements in X-Rayfor the reception of the wall 2, this wall 2 Film Holders and Examinin Frames, of being held in place in this recess and against which the following is a speci cation, refer the flange 12 by means of the bolts 4.

once-being had to the accompanyingdraw- The bottom 11 of the casing rests upon ings. the flange 14: of the frame 3, as illustrated This invention relates to holders for supmost clearly in Figure 4:, and is also bolted porting X-ray and other films for examinato this flange 14 by means of the bolts 4. The tion, and the general object of the invention vertical and horizontal flanges of the frame is to provide a holder for this purpose which 3 are braced from each other at intervals by is particularly adapted for use in examining the vertical webs 15, the bottom 11 being Fi re 2;

X-ray films or photographs, although not slot-ted to fit over these webs. The frame 3 confined thereto, at its corners is formed with feet 16 semi- A furthe obje t f th inv ntio i to r sphericalin shape but flat on the bottom and vide an electrically lighted film holder and each foot being provided at its centerwith examining frame which is simple, compact, a th a d aperture 17 for receivin a cap eflicient and ra tic l, and i hi h th screw 18, WhlCh in turn secures a rubber pad film will be he d flattened out and free from 19 to the foot. I any deformation and abundantly lighted so 8" Of h Walls 2 i p vid with a that the film may be carefully studied and all l K'h 5 which is disposed in a convenient so the details f the'film ad t, place and is intended to make or break a cir- A further object is to provide a film holder, Cu thr gh the dry Cell batteries 7 and an of this character with an illuminating bulb electllc l mp OI bulb 8. This bulb is disand with a parabolic reflector so construct p ed in he l mp Socket 9 and these wires 6' ed as to insure true parallel dispersion of P s fr m the battery 7, as shown in Figure the light rays so as to secure the high t, 2, throu h apertures 10 in the lower plate possible amount of visual acuity. 11 and thence upward through the base of Other bje t h v t do ith th d t il the lamp and have suitable electrical con- 1 of construction and arrangement of part nectlons to the electrodes of the lamp 8, as

as-will appear more fully hereinafter. usual. My invention is illustrated in the accom- At the two upper corners of the casing an panying drawings, wherein ear 20 1S provlded which prO ects above the Figure l is a side elevation of a film holder upp r edge of the casing and these cars reconstructed in accordance with :my inven e ve a plntle 21 havmg its ends 22 reduced tion; in diameter and adapted to receive the as Figure 2 is a vertical sectional transverse threaded nuts 23 e Figure This view thereof; pintle acts as a hinge for the cover frame 25. Figure 3 is a section on the line 3-3 of This cover frame is rectangular in plan and U-shaped in cross section so as to receive be- I igure 1 is an enlarged fragmentary vertween the upper and lower flanges or webs of too tical section; this frame a sheet of clear p ate glass 26. Figure 5 is afragmentary section on the The sheet steel of the frame 25 is bent line 5 -5 of Figur 4; around the bar 21, as shown in Fi'gure 4:, Figure 6 is a top plan view of the rethus securely holding the frame 25 to the flector; casing 1 when the frame is being lifted in Figure 7 is a sectional view of the reorder to insert a film for examination. flector'on the line 7-7 of Figure 6. Opposite to the hinge for the supportin Referrin to these drawings, 1 designates. frame of glass 26 is a sprin latch 27 whic a rectangu ar casing having vertical walls engages over the top of the rame 25 to hold 2. These walls are preferably integral and the g as cl o n up n h ing 1- no may be of any desired hei ht and propor- Immediately beneath the sheet of clear glass tions. This casing is preferably made of 26 there is disposed a sheet of glass 28 which is frosted on itslower face in order that the steel frame 25 thus allowing the two sheets of glass 26' and 28 to be brought in very close proximity to each other and securely hold a film between the sheets for examination. The sheet of glass 28 rests upon a strip of felt packing 30, which in turn rests upon the flanges 31 of a parabolic reflector 32 and acts as a cushion for the glass 28 and also prevents moisture or foreign substances,

such as dust from entering the space below the lass.

T e reflector 32-consists of a thirddimention parabola, as shown most clearly in Fi' ures 2 and 7, which is preferably made of one piece of sheet brass pressed to form a perfect parabola terminating across the corners of the casing, while the sides of the parabola from the line 33 extend directly upward parallel to the side walls of the casmg 1, as at 32*, and then terminate in the flanges 31, as heretofore described. The in terior face of the reflector is silver plated and highly polished to thereby insure efficiency of illumination and to savecurrent, as this construction requires that only one bulb of relatively light watta e and high candle power be used, the re ector acting 'to greatly intensify this candle power. The

' lower wall of the reflector 32 is formed Eli with an opening 34 through which the lamp socket 9 extends. This lamp socket also extends through an opening 34 in the bottom plate 11 and the lamp socket is formed with a shoulder bearing against the center of the reflector; and beyond this shoulder the lamp socket is screw-threaded for the reception of a nut 36 in order to cause the'lamp socket to hold the plate 12 and the reflector clamped securely together and thereby. support the lamp socket rigidly in position.

It will be seen from Figure 4: that the edge of the flange 31 bears against the wall 2 of the casing 1 and that the edge of the packing also bears against this wall, thus preventing the introduction of foreign matter into the space exterior to the reflector. The batteries 7 are of ordinary dry cell form and of suflicient capacity and are secured to the inside of casing 1 by means of straps passing around the body of each battery and then bolted to the wall and bottom of the casing, as shown in Figure 3. Thus in order to replace the worn-out batteries it is only required to raise the cover 25, lift out the glass plate 28, remove the lamp socket 9, lift out the reflector 32 and replace the straps 35, and by reversing these steps the batteries may be readily re laced. While I have illustrated ry batteries disaerate-a posed within the casing for causing the illumination of the lamp 8, I do not wish to be limited to this as an can be used to supply the required current. It is preferable, however, to use the batteries as thus the device may be removed to any desired place in a hospitalor class room or to a place where no other power is obtainable, thus rendering the device other source of power proportion and arrangement of parts may be made without in any way departing from the principle of the invention as defined in the appended claims.

claim:-

1. An X-ray film holder comprising a rectangular casing having a bottom and side walls, a parabolic reflector disposed within the casing at its corners extending up to the top of the frame and between the corners having vertical portions extending to the top-of the frame, said reflector at its upper edge being formed with an outwardly extending flan e bearing at its edge against the side wal s, a strip of packing material resting upon. said flange, frame hinged to the side walls ofthe casing, a glass plate carried by said frame and a second glass plate resting at its margins upon said strip of packing material and so mounted as to permit the two glass plates to come in relatively close proximity to each other when the cover is lowered.

2. An X-ray film holder comprising a rectangular casing having a bottom and side walls, a parabolic reflector disposed within the casing at its corners extending up to the top of the frame and between the corners having vertical portions extending to the top of the frame, said reflector at its upper edge being formed with an outwardly extending flange bearing at itsedge against the side walls, a strip of packing material resting upon said flange and at its side edge bearing against the side walls, a rectangular frame hinged to the side walls of the casing, the framehaving up or and. lower flanges, a glass plate dispose between said flanges, and a second glass plate resting at its mar in upon said strip of packing mate* rial and having the upperface at-its margin bevbled to accommodate the lower flange of said frame whereby to permit the two glass plates to come in relatively close proximity to each other when the cover is lowered.

In testimony whereof I afiix my signature.

JOHN A. ADLER. 

